Addition involving eight-bit 2's complement numbers and indicating overflow.

[shamieh]

Perform the following operations involving eight bit 2's complement numbers and indicate whether arithmetic overflow occurs.

1.
00110110 + 01000101 = 01111011 Overflow: there is none because we are adding to positive numbers.

Did I do this correctly?

 

[Evgeny.Makarov]

The sum is correct, and there is indeed no overflow, but not because you are adding two positive numbers. When you add 1 to 01111111, there is an overflow.